class A:
this_is_original_variable_only_for_one_inctance = 0
def __init__(self, v):
self.this_is_original_variable_only_for_one_inctance = v
class B:
this_is_common_for_all_instances = []
def __init__(self, v):
self.this_is_common_for_all_instances.append(v)
----------------
now I can create some instances of B, but all of them have the same
array, why
if I use append for b1.this_is_common_for_all_instances, the b2, b3
will have been changed that array.
(where bi is instance of B)
but changes on this_is_original_variable_only_for_one_inctance works
fine
why it does that?
and how create array in class - normal array, "private variable"
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